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ctype_print

(PHP 4 >= 4.0.4, PHP 5)

ctype_print - Check for printable character(s)

Описание

bool ctype_print ( string text )

Checks if all of the characters in the provided string, text, are printable.

Список параметров

text

The tested string.

Возвращаемые значения

Returns TRUE if every character in text will actually create output (including blanks). Returns FALSE if text contains control characters or characters that do not have any output or control function at all.

Примеры

Пример 1. A ctype_print() example
$strings = array('string1' => "asdf\n\r\t", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
foreach ($strings as $name => $testcase) {
    if (ctype_print($testcase)) {
        echo "The string '$name' consists of all printable characters.\n";
    } else {
        echo "The string '$name' does not consist of all printable characters.\n";
    }
}

Результат выполнения данного примера:

The string 'string1' does not consist of all printable characters. The string 'string2' consists of all printable characters. The string 'string3' consists of all printable characters.

Смотрите также: ctype_cntrl(), ctype_graph(), ctype_punct().

Описание на ru2.php.net
Описание на php.ru